EP1474538A2 - Use of a steel alloy as a material for pipes for producing gas cylinders, or as a material for producing moulded elements in light-gauge steel construction - Google Patents
Use of a steel alloy as a material for pipes for producing gas cylinders, or as a material for producing moulded elements in light-gauge steel constructionInfo
- Publication number
- EP1474538A2 EP1474538A2 EP03709605A EP03709605A EP1474538A2 EP 1474538 A2 EP1474538 A2 EP 1474538A2 EP 03709605 A EP03709605 A EP 03709605A EP 03709605 A EP03709605 A EP 03709605A EP 1474538 A2 EP1474538 A2 EP 1474538A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steel
- max
- production
- steel alloy
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
- B32B15/013—Layered products comprising a layer of metal all layers being exclusively metallic one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/04—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor characterised by the coating material
- C23C2/06—Zinc or cadmium or alloys based thereon
Definitions
- the invention relates to the use of a steel alloy as a material for pipes for the production of pressurized gas containers or as a material for the production of molded components in lightweight steel construction.
- Pressurized gas containers are usually made of a carbon steel, e.g. St 52-3 or STE 460, manufactured in the normalized condition. If, in addition to the requirement of pressure height, there is also a requirement to save weight, liquid hardenable tempering steels such as SAE 1513 are used.
- the compressed gas tanks are then oil or water treated, then sandblasted and finally subjected to a pressure test.
- the prior art also includes a water-temperable fine-grained steel with a tensile strength Rm of 1400 N / mm 2 , a yield strength Rp0.2 of 1100 N / mm 2 and an elongation A5 of 8%.
- Such fine-grained steel is often used in lightweight steel construction, especially in vehicle construction, for the production of molded components.
- the problem with this steel material is that it can only be tempered with water or in a tool. This is generally complex.
- TRIP steel multiphase steel
- a tensile strength Rm 700 N / mm 2
- a yield strength Rp0.2 480 N / mm 2
- an elongation A5 24%
- the basic strength is too low.
- an increase in strength can be achieved through higher degrees of deformation, but this is not desirable for various molded components, particularly in vehicle construction.
- Substantial changes in structure can also be expected with high-temperature galvanizing.
- the strength curve in weld seams and in heat-affected zones is too critical for this steel material.
- stainless steel with a tensile strength Rm of 800 N / mm 2 , a yield strength Rp0.2 of 370 N / mm 2 and an elongation A5 of 53%.
- stainless steel means very high material costs with low basic strengths.
- strength increases can only be achieved through higher degrees of deformation, which, however, are not always feasible with components of vehicle construction.
- the invention is based on the object of expanding the range of use of the known steel material on the one hand for lightweight steel construction in such a way that thin-walled molded parts or Welded parts can be manufactured with both high strength and high fatigue strength, and that, on the other hand, pressurized gas containers, in particular pressurized gas cylinders, can be manufactured with less material and more simply and economically, without the need for heat treatment after the manufacturing process and after welding.
- the use of a steel characterized there initially has the advantage with regard to the production of pressure vessels that the final heat treatment on the semi-finished tube is carried out in one pass and tempering can be omitted. A clean, soot-free tube is obtained. The manufacturing effort is reduced.
- the steel alloy according to the invention is well suited for fast welding processes, such as MAG or laser beam welding, and thus contributes to a considerable extent to the cost reduction in the production of pressurized gas containers.
- tensile strengths Rm> 950 N / mm 2 and yield strengths Rp 0.2> 700 N / mm 2 with an elongation at break A5> 14% can be set.
- the hot-rolled seamless starting tube is first soft-annealed and then pickled, phosphated and soaped. After the subsequent drawing, air hardening takes place at 950 ° C ⁇ 15 ° C in a continuous furnace under protective gas.
- the precision steel tube is then straightened and subjected to a test, in particular an ultrasound and / or eddy current test.
- each pressurized gas container is produced by welding in a base.
- a longitudinally welded exit tube can also be used.
- the use according to the invention is also advantageous for molded components in lightweight steel construction, in particular for crash-relevant vehicle parts, such as crash boxes, roll bars, side impact elements or column reinforcements, in which, in addition to a certain strength, a certain degree of flexibility (plastic deformation reserve) is required in order to be able to convert crash energy.
- High-strength steels have the disadvantage that they can only be formed into a component to a limited extent and that they only plastically deform relatively little in the event of a crash.
- a useful embodiment of the basic idea according to the invention with regard to the production of pressurized gas containers consists in the features of claim 2, in particular if the wall thicknesses of the pressurized gas containers are at least 2 mm.
- the wall thickness of the compressed gas container is less than 2 mm, the features of claim 3 are preferably used.
- the targeted coordination of the alloying elements of the steel alloy leads to specific properties such as
- this variant according to the invention is advantageous for the production of molded components in lightweight steel construction, here in particular in vehicle construction, preferably for chassis parts such as handlebars or axle supports.
- chassis parts such as handlebars or axle supports.
- the criteria of lightweight construction and corrosion protection under extreme conditions as well as fatigue strength under dynamic stress are in the foreground.
- alternative, possibly equivalent solutions in aluminum are associated with considerable additional costs compared to the solution proposed according to the invention.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat Treatment Of Steel (AREA)
- Coating With Molten Metal (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10206612 | 2002-02-15 | ||
DE10206612 | 2002-02-15 | ||
DE10221486A DE10221486B4 (en) | 2002-02-15 | 2002-05-15 | Use of a steel alloy as a material for pipes for the production of pressurized gas containers |
DE10221487A DE10221487B4 (en) | 2002-02-15 | 2002-05-15 | Use of a steel material in lightweight steel construction |
DE10221486 | 2002-05-15 | ||
DE10221487 | 2002-05-15 | ||
PCT/DE2003/000394 WO2003069005A2 (en) | 2002-02-15 | 2003-02-11 | Use of a steel alloy as a material for pipes for producing gas cylinders, or as a material for producing moulded elements in light-gauge steel construction |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1474538A2 true EP1474538A2 (en) | 2004-11-10 |
EP1474538B1 EP1474538B1 (en) | 2006-11-15 |
Family
ID=27738752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03709605A Expired - Lifetime EP1474538B1 (en) | 2002-02-15 | 2003-02-11 | Use of a steel alloy as a material for pipes for producing gas cylinders, or as a material for producing moulded elements in light-gauge steel construction |
Country Status (8)
Country | Link |
---|---|
US (1) | US20050006011A1 (en) |
EP (1) | EP1474538B1 (en) |
JP (1) | JP2006503175A (en) |
AT (1) | ATE345403T1 (en) |
AU (1) | AU2003214000A1 (en) |
DE (1) | DE50305680D1 (en) |
ES (1) | ES2276047T3 (en) |
WO (1) | WO2003069005A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4036567A1 (en) | 2021-01-29 | 2022-08-03 | Benteler Steel/Tube GmbH | Method for manufacturing and testing a high-strength steel pipe product and test probe and pipe product |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10255264A1 (en) * | 2002-11-27 | 2004-06-17 | Benteler Stahl/Rohr Gmbh | Use of a steel alloy as a material for the manufacture of thick-walled pipe components for motor vehicles |
DE10255260A1 (en) * | 2002-11-27 | 2004-06-09 | Benteler Stahl/Rohr Gmbh | Use of a steel alloy as a material for the production of pipelines for motor vehicles |
DE102004053620A1 (en) * | 2004-11-03 | 2006-05-04 | Salzgitter Flachstahl Gmbh | High-strength, air-hardening steel with excellent forming properties |
KR100660444B1 (en) * | 2005-06-14 | 2006-12-22 | 울산화학주식회사 | Storage method of Nitrogen trifluoride |
DE102010033036A1 (en) | 2010-08-02 | 2012-02-02 | Benteler Automobiltechnik Gmbh | Process for the preparation of a stabilizer with stabilizer bearing |
US20190242524A1 (en) * | 2018-02-05 | 2019-08-08 | Sharpsville Container Corporation | High pressure cylinder |
EP4118246A1 (en) | 2020-03-13 | 2023-01-18 | Tata Steel Nederland Technology B.V. | Method of manufacturing a steel article and article |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2051948A (en) * | 1933-12-23 | 1936-08-25 | Sidney D Inscho | Method and apparatus for reducing tubing |
US2230319A (en) * | 1934-12-04 | 1941-02-04 | Firm Eisen Und Huttenwerke A G | Process of producing iron sheets for laminated electric transformer cores |
US2797173A (en) * | 1954-05-06 | 1957-06-25 | John D Keller | Method of and apparatus for annealing and coating steel sheets |
CA952415A (en) * | 1970-05-20 | 1974-08-06 | Eiji Miyoshi | Process and apparatus for manufacture of strong tough steel plates |
JPH06212349A (en) * | 1993-01-14 | 1994-08-02 | Sumitomo Metal Ind Ltd | High toughness non-heat-treated high strength steel having high machinability and it production |
JP2000144310A (en) * | 1998-11-02 | 2000-05-26 | Nippon Steel Corp | Steel for structural purpose excellent in corrosion fatigue resistance |
-
2003
- 2003-02-11 WO PCT/DE2003/000394 patent/WO2003069005A2/en active IP Right Grant
- 2003-02-11 EP EP03709605A patent/EP1474538B1/en not_active Expired - Lifetime
- 2003-02-11 ES ES03709605T patent/ES2276047T3/en not_active Expired - Lifetime
- 2003-02-11 AU AU2003214000A patent/AU2003214000A1/en not_active Abandoned
- 2003-02-11 AT AT03709605T patent/ATE345403T1/en not_active IP Right Cessation
- 2003-02-11 JP JP2003568115A patent/JP2006503175A/en active Pending
- 2003-02-11 DE DE50305680T patent/DE50305680D1/en not_active Expired - Lifetime
-
2004
- 2004-08-05 US US10/911,937 patent/US20050006011A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO03069005A2 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4036567A1 (en) | 2021-01-29 | 2022-08-03 | Benteler Steel/Tube GmbH | Method for manufacturing and testing a high-strength steel pipe product and test probe and pipe product |
DE102021102086A1 (en) | 2021-01-29 | 2022-08-04 | Benteler Steel/Tube Gmbh | Process for the manufacture and testing of a high-strength tubular product made of steel, as well as a test probe and tubular product |
Also Published As
Publication number | Publication date |
---|---|
AU2003214000A8 (en) | 2003-09-04 |
JP2006503175A (en) | 2006-01-26 |
AU2003214000A1 (en) | 2003-09-04 |
WO2003069005A8 (en) | 2004-10-07 |
US20050006011A1 (en) | 2005-01-13 |
ATE345403T1 (en) | 2006-12-15 |
WO2003069005A2 (en) | 2003-08-21 |
ES2276047T3 (en) | 2007-06-16 |
EP1474538B1 (en) | 2006-11-15 |
WO2003069005A3 (en) | 2003-10-16 |
DE50305680D1 (en) | 2006-12-28 |
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